Brush box



FIG. 1 is a front perspective view of a brush box showing our new design;

FIG. 2 is a rear perspective view of the brush box shown in FIG. 1;

FIG. 3 is a front elevational view of thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a bottom perspective view thereof; and,

FIG. 6 is a perspective view thereof in open position. 

The ornamental design for a brush box, substantially as shown and described. 